Stop mechanism for wire-coiling machines.



, Patented Feb. 20, |900.

S. TURNER. STOP MECHANISM FOR WIRE COILING MACHINES.

(Application led Feb. 26, 1899.)

(No Mqdel.)

l'ra/el'ztor.

UNITED STATES PATENT OEEIoE.

SYDNEY TURNER, OF TORONTO, CANADA.

STOP MECHANISIVI FOR WIRE-COILINGNIACHINES.

SPECIFICATION forming part of Letters Patent N o. 643,994, dated February 20, 1900.

Application tiled February 25, 1899. Serial No. '706 ,85 8. (No model.)

To all whom, t may concern/.-

Be it known that I,SYDNEY TURNER, manufacturer, of the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Automatic Stops for Wire- Ooiling Machines, of which the following is a specification.

My invention relates to improvements in automatic stops for Wire-coiling machines; and the object of the invention is to devise a suitable means whereby the length of the coil of wire may be predetermined and the machine stopped at a desired point automatically, so that the lcoil may be cut off into equal lengths suitable for mattresses and other commercial uses; and it consists, essentially, of a lever provided with a suitable connection at one end to a friction-disk secured on the shaft and designed to engage With a loose pulley thereon and a catch at the opposite end engaged by a locking-bolt, which is released through the medium of friction-disks driven by the Wire passing into the ceiling device, such disks operating through the gear and ratchet-andpawl mechanism to Withdraw the bolt, this depending upon hoW the mechanism is set, as hereinafter more particularly explained.

Figure l is a perspective View of the por-I tion of the machine to which my invention relates. Fig. 2 is a longitudinal section through the machine. Fig. 3 is a side eleva-. tion from the opposite side to that shown in Fig. l of portion of the automatic stop mechanism.

In the drawings like letters of reference indicate corresponding parts in each figure.

A and B are the main feed-rollers of the machine, through which the Wire C passes into the coiling device D. and out of the same as a coil. The rollers A and B are secured on the ends of the shafts A and B", Which are supported in suitable bearings in the frame of the machine, bolted to a suitable base-plate D', as indicated.

E is a driving-pulley loose on the shaft B' and provided With an end friction-disk E. A

F is a friction-disk secured on the main spindle or shaft B and provided With a leather face f and having a hub F', provided with an annular groove f.

G is an arm provided with a forked end extending into the annular groove and pivoted at g on the bracket I-I.

I is a lever rigidly connected-to the arm Gr and having a spiral spring J connecting one end thereof to a suitable portion of 'the frame. The opposite end of the lever lis provided With a handle.

t' is a catch-plate secured near the handle, and c" is a spring secured to the lever and projecting over the catch-plate, the bolt L passing above 'this spring to prevent the rising of the lever I. The leverI extends through a slot k in the plate K, secured to the bedplate D.

L is a bolt supported in a suitable bearing 7a', forming part of the plate K. The bolt L extends through the bearing lo' and is designed to coact With the spring i', as Will hereinafter appear. The outer end of the bolt is connected to the forked bent end m of the rod M, which is supported in suitable bearings in the bed-plate, as indicated, and

has located at the opposite end an arm m', having an upper engaging end, as indicated. A spiral spring m2 is connected to the arm m', and the same serves to hold the bolt L at the opposite end against the catch-plate or bent spring t.

O and O are friction-disks supported on the stud and spindle o and o', respectively, between Which disks the Wire passes, such Wire in its course serving to rotate such disks, and thus communicate motion to the spindle o. The stud 0 and spindle o are supported in suitable bearings on the bed-plate. The Wire is fed through a suitable guide P to the friction-rollers. On the end of the spindle o I secure a gear-pinion o2, Which meshes with a gear-Wheel Q, secured on the stud q', supported in suitable bearings. The face of the gear-Wheel Q is provided with a diametric face-groove Q', dovetail in shape, in which lits a block q of corresponding cross-section to the groove. The block q has a threaded stem q2, to which the link g3 is connected, being secured in place by the thumb-nut g4. The opposite end of the link g3 is connected to an arm R, journaled loosely on the spindle S, having suitable bearings in the standard T.

r is a paWl pivotally connected to the arm R and engaging with the ratchet-Wheel U, se-

IOO

cured on the end of the spindle S. The opposite end of the spindle is provided with a handle s, whereby the pin u on the ratchetwheel U may be turned to the desired point ready to start.

o" is a retaining-pawl engaging with the ratchet-wheel U. The arm m' is in the path of the pin it as it is caused to rotate and is tripped or rotated thereby.

It will be seen by loosening the thumb-nut Q4 and adjusting the block q in the diametric groove Q' that any predetermined throw may be given to the pawl 1'. The friction-disks O and O being driven by the wire as it passes through to the coiling device communicate motion through the `gears o2 and Q and link (13 to the pawl r, which upon every revolution of the gear-wheel gives a forward impetus to the ratchet-wheel U, the distance of such impetus depending upon where the block q is located in -the diametrical groove Q'. It will thus be seen that the length of travel of the wire has a definite relation to the length of travel of the ratchet-wheel U and that such relation can be varied, so that the length of the wire passing between the friction-disks O and O may be predetermined as to its feed by the pin u on the ratchet-wheel U, which comes in contact with the arm m, thereby upsetting it and withdrawing the bolt L from on top of the spring t" to allow the lever to rise to assume the position shown in Fig. 2. The springt" prevents the bolt from projecting too far over the edge of the plate t', as otherwise the bolt could not be easily withdrawn.

In Fig. l the bolt L is shown disengaged to allow the parts to be clearly shown, the lever I appearing in the position it assumes just after being released by the pin u operating the part m.

It will now be understood that when the lever is released the friction-disk F is thrown from engagement with the friction-disk E on the loose pulley E, and consequently as the loose pulley is the driving-pulley the rotary motion of the feed-roller is automatically stopped. The wire coil then made may be cut at any desired point. By throwing down the lever I again, so that the bolt L passes above the spring i', the feed of the wire and coiling of the same will again take place until the pin u 011 the ratchet-wheel U again engages with the arm m', when the operation is repeated, as hereinbefore described.

What I claim as my invention isl. The combination with the feed-rollers, and means for driving the same, of the friction-disks rotated by the wire passing into the machine,and means connecting such frictiondisks with the driving means of the rollers whereby such driving means is thrown out of operation, as and for the purpose specified.

2. The combination with the feed-rollers supported on suitable spindles and the loose pulley on one of the spindles provided with an end face friction-disk, the friction-disk secured on the main spindle and provided with a grooved hub, the forked arm extending into such groove, and the spring-held lever rigidly connected to the bottom of the same, of the peripheral friction-disks designed to be rotated by the wire as it passes into the machine, a tripping means operated by such frictiondisks to release the spring-held lever to throw the driving-frictions apart, as and for the purpose specified.

3. The combination with the feed-rollers supported on suitable spindles and the loose pulley on one of the spindles provided with an end face friction-disk, the friction-disk secured on the main spindle and provided with a grooved hub, the forked arm extending into such groove, and the spring-held lever rigidly connected to the bottom of the same, of the peripheral friction-disks designed to be rotated by the wire as it passes into the machine, the catch-plate secured to the lever and the spring located above the same, the bolt designed to engage with the spring above the catch-plate to hold the lever down, and tripping means to release the bolt and allow the lever to rise to throw the driving friction-disks apart, as and for the purpose specified.

4. The combination with the feed-rollers supported on suitable spindles and the loose pulley on one of the spindles provided with an end face friction-disk, the friction-disk secured on the main spindle and provided with a grooved hub, the forked arm extending into such groove, and the spring-held lever rigidly connected to the bottom of the same, of the peripheral friction-disks designed to be rotated by the wire as it passes int-o the machine, the catch-plate secured to the lever, and the spring located above the same, the bolt designed to engage with the spring above the catch-plate to hold the lever down, the rod journaled on the bed-plate and pivotally connected to the bolt and having an arm at the opposite end,and means operated through the rollers for tilting such arm to throw the bolt away from the lever, as and for the purpose specied.

5. The combination with the feed-rollers supported on suitable spindles and the loose pulley on one of the spindles provided with an end face friction-disk, the friction-disk se-` cured on the main spindle and provided with a grooved hub, the forked arm extending into such groove and the spring-held lever rigidly connected to the bottom of the same, of the peripheral friction-disks designed to be rotated by the wire as it passes into the machine, the catch-plate secured to the lever and the spring located above the same, the bolt designed to engage with the spring above the catch-plate to hold the lever down, the rod journaled on the bed-plate and pivotally connected to the bolt and having an arm at the opposite end, the ratchet-wheel, means for suitably driving it from the wire-driven friction-rollers, and a pin extending from the IOO ratchet-Wheel designed to engage and tilt the arm on the end of the cross-rod, as and for the purpose specified.

6. The combination with the feed-rollers supported on suitable spindles and the loose pulley on one of the spindles provided with an end face friction-disk, the friction-disk secured on the main spindle and provided with a grooved hub, the forked arm extending into such groove and the spring-held lever rigidly connected to the bottom of the same, of the peripheral friction-disks designed to be r0- tated by the Wire as it passes into the machine, the catch-plate secured to the lever, and the spring located above the same, the bolt designed to engage with the spring above the catch-plate-to hold the lever down, the

rod journaled on the bed-plate and pivotally connected to the bolt and having an arm at the opposite end, the ratchet-Wheel, the gear at one end of the lower friction-disk and the dialnetric slot on the face of one of the gears Q, the arm on the spindle of the ratchet-Wheel, the dog pivotally connected to the arm and engaging With the ratchet-wheel, and the link connecting the arm t0 the stud on the gear- Wheel Q and the pin extending laterally from the face of the ratchet-Wheel and designed to tilt the arm on the end of the cross-rod, as and for the purpose specified.

SYDNEY TURNER. Witnesses:

B. BOYD, W. ARMs. 

